Pointer attachment for straight edge and roller assemblies



Se t. 21, 1954 E. c. NORMAN POINTER ATTACHMENT FOR STRAIGHT EDGE ANDROLLER ASSEMBLIES Filed July 15, 1951 Fig. 4 62 w v m W m m M -v Mm e wINVENTOR.

Patented Sept. 21, 1954 POINTER ATTACHMENT FOR STRAIGHT EDGE AND ROLLERASSEMBLIES Eugene 0. Norman, Santa Barbara, Calif., as-

signor to Pettersen Manufacturing Company, Inc., Santa Barbara, Calif.

Application July 13, 1951, Serial No. 236,546

6 Claims. 1

The present invention relates to devices of the office equipment typeand more particularly to straight edge and roller assemblies and pointerattachments therefor, and constitutes an improvement on Patent No.2,277,452.

An object of the present invention is to provide a device including astraight edge with a roller rotatably carried thereby in order that thestraight edge can be freely slidable over a supporting surface, theroller supporting one longitudinal edge of the straight edge fromcontact with the supporting surface.

Another object of the present invention is to provide the roller of theassembly with spring urged pintles for engagement with flanges formed onthe straight edge, the spring providing frictional resistance torelative rotation between the roller and pintle and between the pintleand flanges whereby the straight edge can be slidably moved and theroller rotatably moved over a supporting surface and frictionallyretained in the position where released.

A further object of the present invention is to form the straight edgewith means for longitudinally slidably and adjustably supporting apointer attachment. 4

A still further object of the present invention is to provide a deviceof simple construction so that the same can be readily manufactured andassembled.

Various other objects and advantages of the present invention willbecome apparent in the detailed description to follow. The best forms inwhich I have contemplated applying my invention are clearly illustratedin the accompanying drawings wherein:

Figure 1 is a perspective view of a first form of the invention shown ona printed paper with the straight edge in parallel relation to the linesof typ Figure 2 is a vertical transverse sectional view takensubstantially along the plane of line 2-4 of Figure 1;

Figure 3 is a vertical longitudinal sectional view taken substantiallyalong the plane of line 3-3 of Figure 2;

Figure 4 is a vertical longitudinal sectional view taken substantiallyalong theplane of line 4-4 of Figure 1;

Figure 5 is a perspective view of a modified form; and

Figure 6 is a detail perspective view of the pointer attachment of theform shown in Figure 5.

Referring more particularly to the drawings form and the numeral l2designates the second form of the invention.

The first form I0 of the invention is shown in Figures 1-3 and iscomprised of a fiat elongated strip l4 providing a straight edge l6 atone side. An elongated portion l8 of the strip I 4 is downwardlyangulated and formed with suitable indicia markings 20. The ends of thestrip l4 are upwardly angulated at 22 and 24 to provide a pair offlanges having aligned openings 26 and 28 and 30 and 32.

A pair of rods 34 and 36 are engaged in the openings 26, 28 and 30, 32and fixedly maintained in parallel relation by the flanges 22 and 24.The rods 34 and 36 provide the means whereby the pointer attachment IIcan be longitudinally slidably supported on the straight edge M.

The pointer attachment I I is comprised of a fiat plate 46 having atransversely extending reduced portion 48 terminating in a pointjuxtaposed to the straight edge I 6 and indicia 20. The plate 46 hastransverse end portions angulated at 50 and 52 and formed with alignedpairs of openings 54 and 55. The plate 46 is slidably carried by therods 34 and 3B slidably disposed in the openings 54 and 5B. As seen bestin Figure 3, the flanges50 and 52 are-normally not in planesperpendicular to the plane of the plate 46 but have to be depressed inopposition to their resiliency for movement on the rods 34 and 3B.

The flanges 22 and 24 are formed with rearward extensions 38 and 40having aligned openings 42. The extensions 38 and 40 provide bearingsupports for the roller 44.

The roller 44 is best disclosed in Figures 1 and 4 as comprising anelongated rod having knurled portions 58 and 60. Each end of the rollerhas an axial recess 62 formed therein. A coil spring 64 is positioned ineach recess 62 for outwardly urging the washers 66.

Bearing pintles 68 are formed with cylindrical bearing portions 10rotatably engaged in the recesses 82 and extensions 12 engaged in theapertures 42 for support by the flanges 22 and 24. The bearing pintles68 are formed with annular shoulders 14 spacing the roller 44 from therearward extensions 38 and 40. The washers 66 are centered on thebearing pintles 68 by means of the axial pins I6 formed integrally withthe pintles.

The second form of the invention is best disclosed in Figures 5 and 6and is comprised of a fiat elongated strip 18 having flanges and 82formed at the ends thereof. The flanges 80 and 82 are provided withapertures 84 for supporting the bearing pintles of the invention as inthe first form of the invention. The strip 18 is formed with a straightedge 86 on the longitudinally angulated portion 88. Suitable indiciamarkings are inscribed on the portion 88.

The strip 78 has the longitudinal edge portion opposite to the straightedge 86 transversely arcuated at 90. The pointer 92 is slidably carriedby the arcuated portion 90 Figure 6 shows the pointer 92 as being formedof a flat strap having a pointed end 99 and an arcuated resilientportion 96 for clamping engagement on the arcuated edge portion 90.

In view of the foregoing description of the structure of the presentinvention, it is believed that oneskilled in the art will readilyunderstand the manyuses to which the present invention can be put. Thedevice is particularly adapted for proofreading and copy Work.

Having described the invention, what is claimed as new is:

1. A straight edge and, roller assembly comprising; a flat elongatedsubstantially rigid strip having upstanding flanges at its, ends, saidflanges being formed with aligned apertures, a roller rotatablycarriedby said flanges and being of a diameter to support the juxtaposededge of the strip for movement over a supporting surface, the juxtaposededge of said strip having an upturned portion of transversely arcuatedform and overlying said juxtaposed edge of the strip, and a pointerslidabl-y carried on the arcuated portionof the strip and; slidablyresting upon said strip.

2. A straight edge and, roller assembly comprising a flat elongatedsubstantially rigid strip having upstanding flanges. at its ends, saidflanges being formed with aligned apertures, a roller rotatably carriedby said flanges and being of a diameter to support the juxtaposed edgeof the strip for movement over a supporting surface, the juxtaposed edgeof said strip being of transversely arcuated form and overlying saidstrip, and'a pointer slidably carried on the arcuated edge of the strip,said pointer being a flat strap having one end formed with a point andthe other end of arcuate configuration for resilient clamping andsliding engagement with the areuated edge of; the strip;

3. A straight edge and roller assembly comprising a flat, elongated,substantially rigid strip having upstanding flanges at its ends, saidflanges having aligned apertures, a cylindrical roller having pintlesjournaled in said aligned apertures, said strip having the edge which isremote from said roller angulatedaway-from said flanges to form anobtuse dihedral angle with the remainder of the strip, said roller beingof sufficient diameter to support, with said angulated edge, the rest ofsaid strip above and out of contact with a surface upon which saidroller and angulated edge may rest, the edge of the strip which isjuxtaposed to said roller being of transversely arcuated form andoverlying said strip and provided a curved longitudinally extendingguide bead, a pointer having a cylindrical recess slidingly engaged uponsaid guide bead.

4. The combination of claim 1 wherein said upturned portion is closelyproximate said roller.

5. The combination of claim .1 wherein said upturned portion is closelyproximate said roller, wherein the marginal longitudinal edge portion ofsaid strip which carries said non-juxtaposed edge is inclined downwardlyrelative to the remainder of; said strip.

6. The combination of claim 1 wherein said upturned portion is closelyproximate said roller, wherein the marginal longitudinal edge portion ofsaid strip which carries said non-juxtaposed edge is inclined downwardlyrelative to the remainder of said strip, said pointer slidingly restingupon said strip from its longitudinal juxtaposed edge to itslongitudinal non-juxtaposed edge.

References Cited in the file of this patent UNITED STATES PATENTS GreatBritain Nov. 25, 194 8

